Chen, Cathy; Chen, Shu-Yu; Lee, Sangyeol - In: Computational Economics 42 (2013) 4, pp. 471-490
This paper aims to detect the presence of local non-stationarity of nonlinear autoregressive processes with heteroskedastic errors. A Bayesian test is developed to test for the unit root in multi-regime threshold autoregression with heteroskedasticity. To implement a test, a posterior odds...